Hi!
We are currently trying to upgrade from JIRA 6.2.x to JIRA 7.3. Currently we have especially with Script Runner some issues.
We have a function that on a specific transition a sub task will be created and a person that is filled out in a custom field should be the assignee of the new sub task.
For that we've put the following text into the "Additional issue actions" field:
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.ComponentManager
cfParent = com.atlassian.jira.component.ComponentAccessor.getCustomFieldManager().getCustomFieldObjectByName('Team Lead')
parentMyFieldValue = transientVars["issue"].getCustomFieldValue(cfParent)
issue.setAssignee(ApplicationUsers.toDirectoryUser(parentMyFieldValue))In 6.2 it works flawless, in JIRA 7.3 we are getting several errors:
For Line 3: The variable cfParent is undeclared
For line 4: The variable parentMyFieldValue is undeclared / Cannot find matching method
For line 5: the variable parentMyFieldValue is undeclared / And 2x Cannot find matching method
Hopefully someone can help me 
Thanks in advance